Biochemical changes in skeletal muscles of denning bears (ursus americanus)
作者： D. Anne Koebel , P.G. Miers , R.A. Nelson , J.M. Steffen
DOI: 10.1016/0305-0491(91)90390-Y
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摘要: Abstract 1. Biopsies of the extensor hallucis longus (EHL) and gastrocnemius (G) muscles four captive black bears (Ursus americanus) were obtained prior to denning (PRE), during (DEN) following Spring arousal (POST). 2. Glycogen, triglyceride protein concentrations did not differ significantly between three groups. Likewise, activity citrate synthase, a mitochondrial oxidative enzyme, was different 3. DNA in DEN samples increased 30% compared other groups while RNA elevated POST samples. The RNA/DNA ratios depressed DEN. 4. These results suggest degree muscle atrophy DEN, with potential for an capacity synthesis arousal.
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sci-hub.se 参考文章(19)
Mykles Dl, Skinner Dm, Crustacean muscles: atrophy and regeneration during molting. Society of General Physiologists series. ,vol. 37, pp. 337- 357 ,(1982)
Nelson Ra, Protein and Fat Metabolism in Hibernating Bears Federation proceedings. ,vol. 39, pp. 2955- 2958 ,(1980)
K. Burton, [105] Determination of DNA concentration with diphenylamine Methods in Enzymology. ,vol. 12, pp. 163- 166 ,(1968) , 10.1016/0076-6879(67)12127-7
McGill Db, Wahner Hw, Code Cf, Nelson Ra, Jones Jd, Nitrogen metabolism in bears: urea metabolism in summer starvation and in winter sleep and role of urinary bladder in water and nitrogen conservation. Mayo Clinic proceedings. ,vol. 50, pp. 141- ,(1975)
P.A. Srere, [1] Citrate synthase Citric Acid Cycle. ,vol. 13, pp. 3- 11 ,(1969) , 10.1016/0076-6879(69)13005-0
W.Z. Hassid, S. Abraham, [7] Chemical procedures for analysis of polysaccharides Methods in Enzymology. ,vol. 3, pp. 34- 50 ,(1957) , 10.1016/S0076-6879(57)03345-5
Cecil Entenman, [55] General procedures for separating lipid components of tissue Methods in Enzymology. ,vol. 3, pp. 299- 317 ,(1957) , 10.1016/S0076-6879(57)03395-9
D A Lundberg, H W Wahner, R A Nelson, J D Jones, Protein metabolism in the black bear before and during hibernation. Mayo Clinic proceedings. ,vol. 51, pp. 716- 722 ,(1976)
RA Nelson, HW Wahner, JD Jones, RD Ellefson, PE Zollman, Metabolism of bears before, during, and after winter sleep. American Journal of Physiology. ,vol. 224, pp. 491- 496 ,(1973) , 10.1152/AJPLEGACY.1973.224.2.491
B. L. Krilowicz, Ketone body metabolism in a ground squirrel during hibernation and fasting. American Journal of Physiology-regulatory Integrative and Comparative Physiology. ,vol. 249, ,(1985) , 10.1152/AJPREGU.1985.249.4.R462